<?php

final class PhabricatorFileEditor
  extends PhabricatorApplicationTransactionEditor {

  public function getEditorApplicationClass() {
    return 'PhabricatorFilesApplication';
  }

  public function getEditorObjectsDescription() {
    return pht('Files');
  }

  public function getTransactionTypes() {
    $types = parent::getTransactionTypes();

    $types[] = PhabricatorTransactions::TYPE_COMMENT;
    $types[] = PhabricatorTransactions::TYPE_VIEW_POLICY;

    return $types;
  }

  protected function getCustomTransactionOldValue(
    PhabricatorLiskDAO $object,
    PhabricatorApplicationTransaction $xaction) {}

  protected function getCustomTransactionNewValue(
    PhabricatorLiskDAO $object,
    PhabricatorApplicationTransaction $xaction) {}

  protected function applyCustomInternalTransaction(
    PhabricatorLiskDAO $object,
    PhabricatorApplicationTransaction $xaction) {

    switch ($xaction->getTransactionType()) {
      case PhabricatorTransactions::TYPE_VIEW_POLICY:
        $object->setViewPolicy($xaction->getNewValue());
        break;
    }
  }

  protected function applyCustomExternalTransaction(
    PhabricatorLiskDAO $object,
    PhabricatorApplicationTransaction $xaction) {}

  protected function shouldSendMail(
    PhabricatorLiskDAO $object,
    array $xactions) {
    return true;
  }

  protected function getMailSubjectPrefix() {
    return PhabricatorEnv::getEnvConfig('metamta.files.subject-prefix');
  }

  protected function getMailTo(PhabricatorLiskDAO $object) {
    return array(
      $object->getAuthorPHID(),
      $this->requireActor()->getPHID(),
    );
  }

  protected function buildReplyHandler(PhabricatorLiskDAO $object) {
    return id(new FileReplyHandler())
      ->setMailReceiver($object);
  }

  protected function buildMailTemplate(PhabricatorLiskDAO $object) {
    $id = $object->getID();
    $name = $object->getName();

    return id(new PhabricatorMetaMTAMail())
      ->setSubject("F{$id}: {$name}")
      ->addHeader('Thread-Topic', "F{$id}");
  }

  protected function buildMailBody(
    PhabricatorLiskDAO $object,
    array $xactions) {

    $body = parent::buildMailBody($object, $xactions);

    $body->addTextSection(
      pht('FILE DETAIL'),
      PhabricatorEnv::getProductionURI($object->getInfoURI()));

    return $body;
  }

  protected function shouldPublishFeedStory(
    PhabricatorLiskDAO $object,
    array $xactions) {
    return true;
  }

  protected function supportsSearch() {
    return false;
  }

}